웹river dolphin, any of six species of small, usually freshwater aquatic mammals that are related to whales (order Cetacea). These dolphins are found in rivers of south-central Asia, China, and South America and in the coastal waters of Brazil, Argentina, and Uruguay. River dolphins have long beaks and rounded foreheads, distinguishing them from more familiar-looking … 웹Spix’s macaw in green tree. The Spix’s macaw is a recently extinct animal from near the Rio São Francisco in Bahia, Brazil. In 2024, the bird known as the “Little Blue Macaw” because of its vibrant blue feathers was declared extinct in the wild. Fortunately, experts have documented about 160 Spix’s macaws in captivity.

The Yangtze River finless porpoise WWF

웹1일 전 · A live caught female baiji was found to be 24 years old. This was therefore minimum life expectancy estimate for wild baijis. The age of … 웹No Baiji were expected to be seen in such a short period but about 40 porpoise sightings were observed. Results of the pilot survey indicated that traditional visual and acoustical survey … inheriting 401k from spouse

Baiji: Lipotes vexillifer - ScienceDirect

웹2007년 9월 18일 · The Baiji would be the first species of whale to become extinct through human impact, even though — unlike many other whales — it was not actively hunted. The … 웹2024년 9월 1일 · 1. Introduction. Cetaceans, including whales, dolphins, and porpoises, are a model mammalian group for the study of macroevolution, particularly the molecular changes and adaptations required for the transition from terrestrial to aquatic environments [1, 2].Cetaceans are the only mammalian group that has secondarily adapted to an entirely … 웹2024년 1월 29일 · The Baiji Lipotes vexillifer, Lipotes meaning "left behind", vexillifer "flag bearer") was a freshwater dolphin found only in the Yangtze River in China. Nicknamed "Goddess of the Yangtze" (長江女神) in China, … inheriting 1031 property